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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long int
  4.  
  5. int main() {
  6. 	int t;
  7. 	cin>>t;
  8. 	while(t--){
  9. 		int n, k;
  10. 		cin>>n>>k;
  11. 		vector<int>v(n,0);
  12. 		bool sorted = true;
  13. 		for(int i=0;i<n;i++){
  14. 			int x;
  15. 			cin>>x;
  16. 			v[i]=x;
  17. 			if(i>=1 and v[i]<v[i-1]){
  18. 				sorted = false;
  19. 			}
  20. 		}
  21.  
  22. 		if(k>=2){
  23. 			cout<<"YES"<<endl;
  24. 		} else if(k==1 and sorted){
  25. 			cout<<"YES"<<endl;
  26. 		} else{
  27. 			cout<<"NO"<<endl;
  28. 		}
  29. 	}
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 5276KB
comments (?)
stdin
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5
3 2
1 2 3
3 1
9 9 9
4 4
6 4 2 1
4 3
10 3 830 14
2 1
3 1
stdout
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YES
YES
YES
YES
NO
https://ideone.com/8ci783
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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